Flex :: Update The Model Without Losing Focus In Datagrid?
Jan 25, 2010
In my Flex Project using Cairngorm, I have a model that stores a bindable ArrayCollection displayed by a DataGrid. My problem occurs when the model is updated by the responder (from a Java service, after an "update" event), because the focus located in a cell of the DataGrid is lost (the scroll position il also lost). So, I retrieve the position before the update, with DataGridEvent.ITEM_FOCUS_IN event :
I built this incredibly brilliant scrolling thumbnail image viewer for a client in flash actionscript 3. (Basically it just scrolls up or down depending on the mouse position). It works so so, (I can never get the percentages right so that it shows the top most image) but, that's beside the point. What is REALLY irking me is when I have the browser window open with my .swf loaded and I click on another app on my desktop, the stupid scrolling thumbnail area in the browser window starts to freak out.
"Where is my mouseY?" I assume it is thinking.
Is there a stage.Unfocus event I can tell my scrolling thumbnail area to STFU with?
I'd even consider writing some javascript to call a flash function, if that's a preferred technique.
function checkMousePos(e:Event):void { if(mouseX < 145){ try{
Does anyone know if there's a workaround to the fact that when you escape fullscreen mode in a browser, the swf seems to lose focus? I'm doing fullscreen video and I have to press the pause button twice when returning from fullscreen. I noticed the same problem with YouTube videos.
I have a class listening for key presses attached to the stage, works fine until...a menu item that when clicked removes the menu from the display list. This seems to cause the stage to lose focus & I need to click the mouse on the SWF to get the keys to register again.
i have a button that clears the entire TextField but clicking the button makes me lose focus from the TextField. Right now I'm just putting the focus back with stage.focus = textField; as the event occurs.
Is it possible to somehow not lose focus from a TextField when pressing a button?
I just recently made an online game and was asked to implement saving features. Everything works fine but a single detail... When I update the swf (right now I have a new version with corrected bugs) people are gonna lose all their saved data !
Is there a way to use the same shared objects over multiple swf ? Or simply to keep them over the version change ?
I have datagrid binded with data acquired from web service which, as you may suspectretrieves data from some db. Datagrid has some editable columns and I want to update db through appropriate web service call without adding button "Update" as a last column in datagrid.
I have a custom <mx:DataGrid /> that is updated with data from a ColdFusion server every 60 seconds. I've noticed that every time the DataGrid updates and redraws the scroll position is reset to the top.
Is there a way I can preserve the scroll position for my DataGrid?
I'm trying to update a combobox/datagrid sorter that came from flex3 to a flex4 version but I keep getting an error that my newbie brain is not processing. The error is "1067: Implicit coercion of a value of type Array to an unrelated type mx.collections:IList."
How can I get back the focus to the column after editing datagrid by Keypress.Enter, so that I can move to another column using arrow keys. Now its stuck in the edited cell and I cant move to another column.
It might sound like a trivial question but how can I show progress bars, when datagrids and other components that "talk" to web services, update their data providers
I have a Datagrid that is being populated by an ArrayCollection (rows) of Arrays (columns).I need to update the headerText of each column based on a List that will correspond with the total number of items within each array in the arraycollection. What is the best way of doing this? I know that I can set a listener in the List and update the headerText using (matrixDatagrid.columns[i] as DataGridColumn).headerText but I am looking for a cleaner solution.
The checkboxes are updated correctly when I select one or more datagrid rows but when I select a checkbox for the first time the checkbox does not refresh until the pointer moves out of the datagrid row. How can I fix this?
The class below is the Model in an MVC triad. It works fine when the businessUnits array is populated manually (see commented block in the constructor). However, when data is downloaded from a MySQL database using a php script, businessArray is NOT being populated and an error (see attached screenshot) is thrown. I know it is to do with 'listening/waiting' for the download to complete before populating the businessUnits array.
I have a data grid with a custom item editor that displays a DropDownList component. When I click the scroll bar in the component, it is firing a focus out event on the list, which is causing itemEditEnd to fire. Why the list is not keeping focus, or how to make it keep focus. I'm using Flex 4.
How can i update multiple cells of the same row changing the value of a single cell of the same row ??
Example: id, height, weight, fat percentage, corporal mass. When i change one of the values in a row (except id of course) the corporal mass cell value must change using a formula like: (height/weight2)*fat percentage*100. Is this posible with Datagrid or AdvancedDatagrid in Flex ??
I tried using custom item renders and inserting actionscript code inside the datagrid with no good result.
Im working with a flex application that pulls data from a java class file using message handler event. The received message string is added to ArrayCollection. The string consists of codeID and other values related to codeID. Had displayed the detail in a datagrid. The codeID is randomly generated and is pushed to flex for every second. Now, the problem is, I needa update the datagrid cell values, for instance, if i have pushed codeID's of (0001,0007,0005,0003) to the front end, that displays the corresponding values of each codeID in the datagrid, second instance of (0001) should update records in the existing row of (0001). I tried to check the existence of codeID in ArrayCollection using search algorithm, but dont know how to proceed further.
I have a component A in my flex project where people can vote for their favourite artist. Someone "likes" an artist, it get's updated in my database. There is also a component B that shows a chart of the most liked artists. I call the data from the database on creationcomplete in Flex. The problem is that when a person first votes on an artist, it will not be visible in the datagrid untill the user reloads the main page (?) or reopens the entire application. So i was wondering how i can update the datagrid everytime someone adds a vote to my database. I'm now using an update button, but that's not very user friendly of course.
I want the selectedIndex to remain the same. So, if I delete item 2, the next in the list should be selected. The problem is that if I delete item 2, item 3 will be selected and I have no idea why.
As it is said here: [URL] "If you do a Google search today for "MVVM and Flex", the first post is by somebody who claims that MVVM is not a good fit for Flex. I couldn't disagree more. Out of the box, the Flex framework makes it much easier to implement a Presentation Model than similar MVVM implementations in Silverlight. That is not to say that there aren't good third-party libraries that make it easier in Silverlight, but without any help, it is easier to do in Flex." So MVVM as LOGICAL CONCEPT can be implemented in both but the way it is implemented in Silverlight requires more Plumbing than Flex.
What prevents Silverlight MVVM to be implemented like Flex ? Doesn't Silverlight have same capability in event system to do the same? If yes why does Silverlight do things more complicated what's the advantages then ? Is it about using Class Interfaces which are more strongly typed? What are the disadvantages also ? For example as for implementing MULTIPLE VIEWS for 1 View-Model does Flex implementation make it also more obvious?
I'm writing an application using a DataGrid DG1 in a MovieClip MC1. The User can click on DG1 and edit it, ok, no problem. But when the User begins to edit the content of a specific cell of DG1, I want to open a dedicated wizard in front of it. In the first step of that wizard popup (MovieClip MC2, child of MC1), there is another DataGrid (DG2) and I would like the User to be able to directly use the up and down keyboard arrows to browse the DG2 content without having to click it first.
But the keyboard events are then captured by DG1. I tried to use a stage.focus, setFocus, I triggered MouseEvents on DG2 but nothing to do, I have to physically click on it before the keyboard events are sent to it. So, my question is: how to, within MC1, tell Flash the keyboard events will be triggered on DG2 ? Can we ask DG1 to loose the (keyboard) focus ?
I am currently working on making my Flex application accessible. I have an mx DataGrid that I am using for showing complex data. Each row contains information about a person and one of the columns contains a button to "submit" that person's information. Currently if I tab to the DataGrid, it has focus on the whole thing, but I cannot tab to individual cells. For accessibility purposes, I need the user to be able to tab to each of these cells to read the information. Everywhere I've looked I've found that it seems the only way to focus on an individual cell is to set the editable property to true. However, I do not want to make the field editable, as that information should not be changed.
At the very least I would like to be able to tab to the cell that has the button ItemRendender for each person. I could set the rest of the information in the accessibilityName of that. Is there any way to accomplish this? Or am I going to have to find a more "creative" solution?
I'm creating Datagrid dynamically and giving each row's first column a custom checkbox cellrenderer as noted here: [URL]. I have added an ITEM_CLICK event listener to the datagrid as such:
Code: datagrid.addEventListener(ListEvent.ITEM_CLICK, ToggleCheckBox); However, for the life of me I cannot figure out A) how to target the CheckBox specifically, B) how to toggle its' selected value, and C) how to finally update the datagrid view to reflect the toggled option.
Code: private function ToggleCheckBox(e:ListEvent) { // do some magic }
I want to update a single cell value in a datagrid, is this possible?here is the code from adobe for replaceItemAt example:
my_dg.setSize(140, 100);my_dg.move(10, 40);replace_button.move(10, 10);// Set up sample data.var myDP_array:Array = new Array();myDP_array.push({name:"Clark", score:3135});myDP_array.push({name:"Bruce",
I'm new to Flash and PHP. I'm using the FlashBuilder with PHP product. I have a data grid that is connected to a PHP script that retrieves and updates data via the 'Enable Data Management' function. If I modify data on the grid by using the screen and call .commit(), everything works OK.
However I would like to programmatically change some of the values in the data that underly the grid and have those changes get back to the update function in the PHP script when commit(). is called. But I can't figure out how to change the underlying data.
Here's the code I've tried: (the object that I pass back and forth to the PHP script is call MailPiece. I want to set the WORKORDERNUMBER field on each row of the data)
In a DataGrid, how can I force data() of all itemRenderers on visible rows to be called when I've made an update to the dataProvider.I'n the following the Grid isn't updated after pressing doSomething. If I have a large list the update is done when scrolling down and then back up again, or in the case of the TreeGrid i open/close a node.
I'am trying to create a Flex Application where users can select courses from a combo box based on the department that offers the course. The combo box has an XML variable as its data provider and has the different departments listed. When a user selects the department from the combo box the courses offered for that department should automatically update (show up) in the data grid under their respective columns. What it needs to do is retrieve the XML for the selected department and then set the data provider for the srcgrid accordingly. I am having a lot of trouble with things displaying correctly in the data grid. The course should be under Course ID, course name under Name, etc...
HTML Code: <?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute"> <mx:Script> <
